code: def __getitem__(self, index):
      return torch.rand(1, 28, 28), torch.randint(10, size=(1,)).item()
  
file_path: lightning-flash/tests/core/test_data.py
imports: import pytest
  import torch
  from flash import DataKeys, DataModule, RunningStage
  from flash.core.data.data_module import DatasetInput
  from flash.core.utilities.imports import _TOPIC_CORE_AVAILABLE
label_desc: Use image node_id 1 for calling the DummyDataset obj's underlying member method code with example usage: obj.__getitem__(index) and returns: torch,  torch